CN104626999A - Strengthened pantograph compound carbon contact strip with carbon fiber veneer and manufacturing method of strengthened pantograph compound carbon contact strip - Google Patents
Strengthened pantograph compound carbon contact strip with carbon fiber veneer and manufacturing method of strengthened pantograph compound carbon contact strip Download PDFInfo
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Abstract
The invention discloses a strengthened pantograph compound carbon contact strip with a carbon fiber veneer and a manufacturing method of the strengthened pantograph compound carbon contact strip. The strengthened pantograph compound carbon contact strip used for electric locomotives and high-speed motor train units comprises a pantograph compound carbon contact strip body structure composed of carbon strips and an aluminum bracket, carbon fiber grid cloth tightly attached to the side face of the pantograph compound carbon contact strip body structure and an alloy carbon face layer tightly attached to the outer side of the carbon fiber grid cloth, wherein metal powder permeates into the internal tissue of the carbon fiber grid cloth. According to the strengthened pantograph compound carbon contact strip, carbon fiber high-electric-conduction sticking faces are arranged on the two side faces of the pantograph compound carbon contact strip body to form the strengthened pantograph compound carbon contact strip which has higher strength, higher electric conduction performance, higher toughness, higher impact resistance, higher crack resistance and higher block falling prevention performance than a carbon contact strip formed by carbon strips and an aluminum bracket, and the strengthened pantograph compound carbon contact strip is suitable for operation at the speed of 380 kg/h or higher.
Description
Technical field
The invention belongs to field of railway transportation equipment, enhancing pantograph composite carbon slide plate relating to a kind of carbon fiber veneer and preparation method thereof, is specifically related to a kind of enhancing pantograph composite carbon slide plate and preparation method of the carbon fiber veneer for electric locomotive and EMU.
Background technology
Along with Fast Construction and the development of China Express Railway, the construction of EMU is also in continuous quickening, and just the quantity of the EMU of China arranges close to 1000 so far, and the quantity of EMU is also in continuous increase.
The operation power resources of electric locomotive and EMU are in the contact line conducting wire of frame at EMU top, synchronously slided with the top line pressure of 6 ~ 8kg and Wire stick close contact and motor train unit by the pantograph carbon slide that is installed on EMU roof top, high tension supply in contact system is transferred to electric locomotive and the running of motor train unit high-speed electric expreess locomotive, drive EMU high-speed cruising.So the pantograph carbon slide being installed on EMU top be guarantee its EMU at a high speed, one of safe operation very important critical component, be also classified as vitals by Chinese Railway main office.This pantograph carbon slide all relies on German imported with original packaging product at present, and imported product delivery cycle is long, and expensive.
Existing electric locomotive and EMU pantograph carbon slide are by carbon bar and strip aluminium bracket conductive adhesive gained.The high-speed electric expreess locomotive making carbon top and conductive contact high tension supply is sent to locomotive or motor-car by carbon bar top and high-voltage fence wire with the top line pressure of 6 ~ 8kg when real-world operation operates, thus drive electric locomotive and EMU operation.Carbon slipper conduction while also will be same with electric locomotive or EMU speed sliding with wire.Because the connection of whole carbon bar is only by conducting resinl, carbon material is all fragility, runs into impact and will rupture and fall block.Electric locomotive and EMU operationally often can run into the node and suspension clamp etc. of wire because of climate change; the factors such as strong wind occur that displacement and dislocation form hard spot; thus cause carbon bar when high-speed slide, carbon slipper interrupted or destroy block; some is even beaten carbon bar and flies; only remaining aluminium cradle surface will cause serious traffic safety accident, and this situation also can be blown electrical network and caused cataphoretic failure and consequence.Moreover carbon bar and aluminium bracket are only by conductive adhesive, bind strength is limited, add carbon slipper operationally due to very large by the magnitude of current, add that high-speed friction causes slide plate to generate heat, sometimes slide plate temperatures as high more than 400 is spent, at this moment conducting resinl will be caused to lose efficacy, and slide plate carbon bar fracture and come off and cause the accident.There is above such accident and all want hundreds of times every year in china railway system.Cause locomotive to stop transport and incur loss through delay and repairing, the whole nation is annual because of the more than one hundred million unit of this type of causality loss.
Summary of the invention
The object of the invention is the above-mentioned defect for prior art, a kind of enhancing pantograph composite carbon slide plate of the carbon fiber veneer for electric locomotive and EMU is provided.
Another object of the present invention is to provide the preparation method of the enhancing pantograph composite carbon slide plate of this carbon fiber veneer.
Object of the present invention can be achieved through the following technical solutions:
A kind of electric locomotive and EMU, with strengthening pantograph composite carbon slide plate, comprise the interior tissue pantograph carbon slide agent structure, the pantograph carbon slide agent structure side that be made up ofs carbon bar and aluminium bracket be close to and permeate and have the carbon fiber mesh fabric of metal powder and be close to the alloy carbon surface layer outside carbon fiber mesh fabric.Interior tissue infiltration has the carbon fiber mesh fabric of metal powder and alloy carbon surface layer to form high connductivity alloy carbon fiber overlay coating, high connductivity alloy carbon fiber overlay coating is close to pantograph carbon slide agent structure side, identical with pantograph carbon slide agent structure side view, for multi-angle and integral curved, such shape is conducive to the carbon bar on top and the aluminum strip of bottom firmly to catch on, and makes structure more firm.
Wherein said carbon fiber mesh fabric is the carbon fiber mesh fabric of wide 45 ~ 50mm, 1 ~ 4k.
Pantograph carbon slide agent structure and high connductivity alloy carbon fiber overlay coating have one deck veneer glue-line.
Described alloy carbon surface thickness is 0.3 ~ 0.7mm, preferred 0.5mm.
Enhancing pantograph composite carbon slide plate of the present invention, preferably prepares mainly through following methods:
(1) by described pantograph carbon slide agent structure side surface sand-blast finish;
(2) interior tissue infiltration there is the carbon fiber mesh fabric of metal powder by conduction veneer sticker in pantograph carbon slide agent structure side, with running roller, on carbon fiber mesh fabric surface, roller is dynamic back and forth, bubble in carbon fiber mesh fabric is driven out of, makes high connductivity overlay glue fully permeate organization internal in carbon cloth; Wherein said conduction overlay glue is by E-48 epoxy resin 40 ~ 60 weight portion, electrode coke carbon dust 15 ~ 20 weight portion, 500 order superfine graphite powder 5 ~ 10 weight portions, puts into grind conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make; The wherein granularity of electrode coke carbon dust preferably 200 ~ 400 orders, further preferred 320 orders; Granularity preferably 400 ~ 600 orders of superfine graphite powder, further preferred 500 orders.
(3) classification temperature raising solidification is carried out to the composite carbon slide plate half-blank that previous step obtains;
(4) at the conduction front cover glue of the semi-finished carbon cloth outer surface of composite carbon slide plate, form the alloy carbon surface layer that one deck 0.5mm is thick, then the solidification carried out with the high temperature of 50 ~ 150 DEG C 10 hours is put into, naturally take out after cooling, after polishing is carried out on surface, obtain described enhancing pantograph composite carbon slide plate finished product; Wherein, described conduction front cover glue by epoxy resin 20 ~ 30 weight portion, metal powder 20 ~ 30 weight portion, electrode graphite powder 10 ~ 15 weight portion, coke powder 20 ~ 30 weight portion is put into and is ground conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make; Wherein, the granularity preferably 0.2 ~ 0.6mm of electrode graphite powder, further preferred 0.4mm; Granularity preferably 200 ~ 300 orders of coke powder, further preferred 200 orders.
Fibre reinforced pantograph composite carbon slide plate of the present invention is preferred further to be prepared mainly through following steps:
(1) bonding plane of be shaped the carbon bar after roasting and aluminium bracket is worn into the curve according to drawing requirement, then the bonding plane of strip aluminium bracket section bar and carbon bar is made the curve coincide with carbon bar corresponding surface; Sand-blast finish is carried out to the curve bonding plane of stripe shape aluminium bracket, the conducting resinl asking to protect is coated in ZL 2,009 1 0029622.6 respectively at the curve bonding plane of carbon bar curve bonding plane and stripe shape aluminium bracket, the two conjunction is tightly pressurizeed through high temperature 90 ~ 150 DEG C, within 5 ~ 8 hours, is cured and obtains pantograph carbon slide agent structure; Correcting process is carried out to pantograph carbon slide agent structure, all carries out surface sand-blasting process in the side of pantograph carbon slide agent structure;
(2) by high temperature resistant E-48 epoxy resin 40 ~ 60 parts, electrode coke carbon dust 15 ~ 20 parts, 5 ~ 10 parts, superfine graphite powder, successively put into and grind conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make conduction overlay glue, be applied to the pantograph carbon slide agent structure side through sand-blast finish, there is the carbon fiber mesh fabric of metal powder to be affixed on coated face interior tissue infiltration again, then turn over multiple roller back and forth in carbon fiber veneer with curved surface running roller, make high connductivity overlay glue fully permeate organization internal in carbon cloth;
(3), after aforesaid operations completes, composite carbon slide plate half-blank is put into hot setting case, through elementary 40 DEG C 30 minutes, middle rank 60 DEG C 1 ~ 2 hour, senior 80 ~ 150 DEG C of classification temperature raisings of 4 ~ 6 hours solidification, taking-up after cooling naturally;
(4) with epoxy resin 20 ~ 30 parts, metal or copper powder 20 ~ 30 parts, 10 ~ 15 parts, electrode graphite powder, the ratio that coke powder is 20 ~ 30 parts is successively put into stone roller conjunction machine and is carried out mixed stone roller conjunction, make conduction front cover glue, be applied to the semi-finished carbon fiber mesh fabric outside face of the composite carbon slide plate after taking-up, form the thick alloy carbon surface layer of 0.5mm at carbon fiber surface; Then put into the solidification that the solidification case high temperature of 50 ~ 150 DEG C carries out 10 hours, cooling taking-up afterwards naturally, obtain described enhancing pantograph composite carbon slide plate finished product after polishing is carried out on surface, the alloy carbon surface thickness of finished product is still 0.5mm.
Wherein, one or more in described metal powder preferred 200-320 object copper powder, tungsten powder or silver powder, select according to required hardness and electric conductivity during actual production.
Described interior tissue infiltration has the carbon fiber mesh fabric of metal powder to make preferably by following methods: carbon fiber mesh fabric is cut into required length, put into wide groove, in order to carbon fiber mesh fabric quality meter, the metal powder of 20 ~ 30wt% is sent forth on carbon fiber mesh fabric, then put into ultrasonic vibrator and carry out ultrasonic vibration 0.8 ~ 2Kw, 30 ~ 80min, makes metal powder penetrate into the interior tissue of carbon fiber mesh fabric, takes out after all permeating.The wherein condition of ultrasonic vibration process preferred 1kw, 40min.
Electric locomotive of the present invention and EMU strengthen the preparation method of pantograph composite carbon slide plate, comprise the following steps:
(1) by described pantograph carbon slide agent structure side surface sand-blast finish;
(2) by wide 45 ~ 50mm, the interior tissue infiltration of 1 ~ 4k has the carbon fiber mesh fabric of metal powder by conduction veneer sticker in pantograph carbon slide agent structure side, with running roller, on carbon fiber mesh fabric surface, roller is dynamic back and forth, bubble in carbon fiber mesh fabric is driven out of, makes high connductivity overlay glue fully permeate organization internal in carbon cloth; Wherein said conduction overlay glue by E-48 epoxy resin 40 ~ 60 weight portion, electrode coke carbon dust 15 ~ 20 weight portion, superfine graphite powder 5 ~ 10 weight portion, puts into and grinds conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make;
(3) classification temperature raising solidification is carried out to the composite carbon slide plate half-blank that previous step obtains;
(4) at the conduction front cover glue of the semi-finished carbon cloth outer surface of composite carbon slide plate, form the alloy carbon surface layer that one deck 0.5mm is thick, then the solidification carried out with the high temperature of 50 ~ 150 DEG C 10 hours is put into, naturally take out after cooling, after polishing is carried out on surface, obtain described enhancing pantograph composite carbon slide plate finished product; Wherein, described conduction front cover glue is by epoxy resin 20 ~ 30 weight portion, and metal powder 20 ~ 30 weight portion, electrode graphite powder 10 ~ 15 weight portion, coke powder 20 ~ 30 weight portion is put into and ground conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make.
Preparation method of the present invention preferably includes following steps:
(1) bonding plane of be shaped the carbon bar after roasting and aluminium bracket is worn into the curve according to drawing requirement, then the bonding plane of strip aluminium bracket section bar and carbon bar is made the curve coincide with carbon bar corresponding surface; Sand-blast finish is carried out to the curve bonding plane of stripe shape aluminium bracket, the conducting resinl asking to protect is coated in ZL 2,009 1 0029622.6 respectively at the curve bonding plane of carbon bar curve bonding plane and stripe shape aluminium bracket, the two conjunction is tightly pressurizeed through high temperature 90 ~ 150 DEG C, within 5 ~ 8 hours, is cured and obtains pantograph carbon slide agent structure; Correcting process is carried out to pantograph carbon slide agent structure, all carries out surface sand-blasting process in the side of pantograph carbon slide agent structure;
(2) by high temperature resistant E-48 epoxy resin 40 ~ 60 parts, electrode coke carbon dust 15 ~ 20 parts, 5 ~ 10 parts, superfine graphite powder, put into and grind conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make conduction overlay glue, be applied to the pantograph carbon slide agent structure side through sand-blast finish, there is the carbon fiber mesh fabric of metal powder to be affixed on coated face interior tissue infiltration again, then turn over multiple roller back and forth in carbon fiber veneer with curved surface running roller, make high connductivity overlay glue fully permeate organization internal in carbon cloth;
(3), after aforesaid operations completes, composite carbon slide plate half-blank is put into hot setting case, through elementary 40 DEG C 30 minutes, middle rank 60 DEG C 1 ~ 2 hour, senior 80 ~ 150 DEG C of classification temperature raisings of 4 ~ 6 hours solidification, taking-up after cooling naturally;
(4) with epoxy resin 20 ~ 30 parts, metal or copper powder 20 ~ 30 parts, 10 ~ 15 parts, electrode graphite powder, the ratio that coke powder is 20 ~ 30 parts is successively put into stone roller conjunction machine and is carried out mixed stone roller conjunction, make conduction front cover glue, be applied to the semi-finished carbon fiber mesh fabric outside face of the composite carbon slide plate after taking-up, form the alloy carbon surface layer of 0.5 millimeters thick at carbon fiber surface; Then put into the solidification that the solidification case high temperature of 50 ~ 150 DEG C carries out 10 hours, cooling taking-up afterwards naturally, obtains described enhancing pantograph composite carbon slide plate finished product after polishing is carried out on surface.
Wherein, one or more in described metal powder preferred 200-320 object copper powder, tungsten powder or silver powder, select according to required hardness and electric conductivity during actual production.
Described interior tissue infiltration has the carbon fiber mesh fabric of metal powder to make preferably by following methods: carbon fiber mesh fabric is cut into required length, put into wide groove, in order to carbon fiber mesh fabric quality meter, the metal powder of 20 ~ 30wt% is sent forth on carbon fiber mesh fabric, then put into ultrasonic vibrator and carry out ultrasonic vibration 0.8 ~ 2Kw, 30 ~ 80min, makes metal powder penetrate into the interior tissue of carbon fiber mesh fabric, takes out after all permeating.
Beneficial effect:
The two sides of pantograph carbon slide agent structure are mainly carried out carbon fiber high connductivity sticking veneer and are obtained a kind of enhancing pantograph composite carbon slide plate by the present invention again, this enhancing pantograph composite carbon slide plate possesses higher intensity, higher electric conductivity, stronger toughness and shock-resistant, anti-fracture and fall block performance than the carbon slipper be made up of carbon bar and aluminium bracket, and applicable more than 380kg/h speed is run.Enhancing pantograph composite carbon slide plate of the present invention is compared with the carbon slipper of external imported with original packaging, price reduces 50%, service life increases by 50%, thus reach the object reduced costs, and meet the carbon slipper failure-free operation when 380kw/h, the generation of improper accidents such as being in operation and can not producing fracture, fall block, be burned, guarantees the safe and reliable operation of China's EMU and electric locomotive.
Accompanying drawing explanation
Fig. 1 the present invention strengthens pantograph composite carbon slide plate schematic diagram.
Fig. 2 strengthens pantograph composite carbon slide plate cross sectional representation, and wherein 1 is carbon bar, and 2 is aluminium bracket, and 3 is carbon fiber mesh fabric, and 4 is alloy carbon surface layer, and 5 is high connductivity alloy carbon fiber overlay coating, and 6 is conductive adhesion layer, and 7 is veneer glue-line.
Detailed description of the invention
Embodiment 1
A kind of electric locomotive and EMU are with strengthening pantograph composite carbon slide plate, comprise the pantograph carbon slide agent structure be made up of carbon bar 1 and aluminium bracket 2, the interior tissue infiltration that pantograph carbon slide agent structure side is close to has carbon fiber mesh fabric 3 and the alloy carbon surface layer 4 of metal powder.The conductive adhesion layer 6 having conducting resinl to be formed between carbon bar 1 and aluminium bracket 2.Interior tissue infiltration has the carbon fiber mesh fabric 3 of metal powder and alloy carbon surface layer 4 to form high connductivity alloy carbon fiber overlay coating 5; High connductivity alloy carbon fiber overlay coating 5 is close to pantograph carbon slide agent structure side by veneer glue-line 7, identical with pantograph carbon slide agent structure side view, for multi-angle and integral curved, such shape is conducive to the carbon bar 1 on top and the aluminium bracket 2 of bottom firmly to catch on, and makes structure more firm.
Below the preparation method that above-mentioned electric locomotive and EMU strengthen pantograph composite carbon slide plate:
(1) bonding plane of be shaped the carbon bar after roasting and aluminium bracket is worn into the curve according to drawing requirement, then the bonding plane of strip aluminium bracket section bar and carbon bar is made the curve coincide with carbon bar corresponding surface; Sand-blast finish is carried out to the curve bonding plane of stripe shape aluminium bracket, the conducting resinl of ZL 2,009 1 0029622.6 embodiment 1 preparation is coated respectively at the curve bonding plane of carbon bar curve bonding plane and stripe shape aluminium bracket, the two is closed tight pressurization, through 5 hours, temperature is progressively heated to 150 DEG C by 90 DEG C, be cured and obtain pantograph carbon slide agent structure; Correcting process is carried out to pantograph carbon slide agent structure, all carries out surface sand-blasting process in the side of pantograph carbon slide agent structure;
(2) the wide grid cloth of 45mm is woven into the carbon fibre tow of 1k, cut into and the length required for carbon slipper, put into wide groove (groove available metal or non-metal are made), send forth on carbon fiber mesh fabric with 320 copper powders of 30% amount, then put into ultrasonic vibrator and carry out ultrasonic vibration 1kw, 40min, makes copper powder penetrate into the interior tissue of carbon fiber, takes out after all permeating.
(3) by E-48 epoxy resin 40 weight portion, 320 object electrode coke carbon dust 15 weight portions, 500 object superfine graphite 10 weight portions are put into and are ground conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make conduction overlay glue; Infiltration there is the fine carbon cloth of the carbon of copper powder to set level, coat conduction overlay glue until permeate completely.
(4) after sand-blast finish, coat with two sides that carbon bar and aluminium bracket to be sticked into the carbon slipper after type by conducting resinl the conduction overlay glue that previous step makes.The carbon fiber mesh fabric again step (3) being coated with conduction overlay glue is affixed on two sides of carbon bar and aluminium bracket, turn over curved surface running roller again and roll carbon fiber veneer again, after catching up with most bubble fully to engage, with curved surface clamping plate, both sides are clamped the grip force of about 20kg, composite carbon slide plate half-blank is put into hot setting case, through elementary 40 DEG C 30 minutes, middle rank 60 DEG C 2 hours, senior 80 ~ 150 DEG C of classification temperature raising of 6 hours solidifications, take out after cooling naturally.
(5) E-48 epoxy resin 30 parts, 320 object copper powders 30 parts, 15 parts, the electrode graphite powder of 0.4mm, the conduction front cover glue made described in 200 30 parts, object coke powder by step (4) after the veneer of the composite carbon slide plate of hot setting carries out revising and polish, to be applied to surperficial 0.5mm thick with resistance to again, then put into solidification case, with the hot setting 10 hours (progressively heating) of 50 ~ 150 DEG C, naturally take out after cooling, after carrying out surface polishing, make finished product.
Investigate the anti-bar intensity of enhancing pantograph composite carbon slide plate, compressive strength, the impact strength of carbon fiber veneer prepared by common pantograph carbon slide (namely not carrying out the pantograph carbon slide of carbon fiber mesh fabric veneer) of the prior art and the present embodiment, the results are shown in following table:
Note: anti-bar intensity detection WDT-10 microcomputer controlled electronic universal tester
Compressive strength detects WDT-10 microcomputer controlled electronic universal tester
Impact strength detects JBN-260 shock test machine
Examination criteria is pressed: TB/T1842.3-2008 performs
The carbon fiber veneer made through the inventive method and step strengthens electric locomotive and speed motor train unit pantograph composite carbon slide plate, pulling strengrth, shock strength double, service life can improve 50%, and the generation of slide plate fracture and the parking accident caused because of hard spot punching is greatly reduced in use procedure, ensure that the safe and reliable operation of electric locomotive and EMU.
Claims (10)
1. electric locomotive and EMU are with strengthening a pantograph composite carbon slide plate, it is characterized in that comprising the interior tissue pantograph carbon slide agent structure, the pantograph carbon slide agent structure side that are made up of carbon bar (1) and aluminium bracket (2) be close to and permeate the carbon fiber mesh fabric (3) and the alloy carbon surface layer (4) that there are metal powder; Interior tissue infiltration has the carbon fiber mesh fabric (3) of metal powder and alloy carbon surface layer (4) to form high connductivity alloy carbon fiber overlay coating (5).
2. enhancing pantograph composite carbon slide plate according to claim 1, is characterized in that described carbon fiber mesh fabric is the carbon fiber mesh fabric of wide 45 ~ 50mm, 1 ~ 4k.
3. the enhancing pantograph composite carbon slide plate according to any one of claim 1 ~ 2, is characterized in that preparing mainly through following methods:
(1) by described pantograph carbon slide agent structure side surface sand-blast finish;
(2) interior tissue infiltration there is the carbon fiber mesh fabric of metal powder by conduction veneer sticker in pantograph carbon slide agent structure side, with running roller, on carbon fiber mesh fabric surface, roller is dynamic back and forth, bubble in carbon fiber mesh fabric is driven out of, makes high connductivity overlay glue fully permeate organization internal in carbon cloth; Wherein said conduction overlay glue by E-48 epoxy resin 40 ~ 60 weight portion, electrode coke carbon dust 15 ~ 20 weight portion, superfine graphite powder 5 ~ 10 weight portion, puts into and grinds conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make;
(3) classification temperature raising solidification is carried out to the composite carbon slide plate half-blank that previous step obtains;
(4) at the conduction front cover glue of the semi-finished carbon cloth outer surface of composite carbon slide plate, form the alloy carbon surface layer that one deck 0.5mm is thick, then the solidification carried out with the high temperature of 50 ~ 150 DEG C 10 hours is put into, naturally take out after cooling, after polishing is carried out on surface, obtain described enhancing pantograph composite carbon slide plate finished product; Wherein, described conduction front cover glue is by epoxy resin 20 ~ 30 weight portion, and metal powder 20 ~ 30 weight portion, electrode graphite powder 10 ~ 15 weight portion, coke powder 20 ~ 30 weight portion is put into and ground conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make.
4. enhancing pantograph composite carbon slide plate according to claim 3, is characterized in that preparing mainly through following steps:
(1) bonding plane of be shaped the carbon bar after roasting and aluminium bracket is worn into the curve according to drawing requirement, then the bonding plane of strip aluminium bracket section bar and carbon bar is made the curve coincide with carbon bar corresponding surface; Sand-blast finish is carried out to the curve bonding plane of stripe shape aluminium bracket, the conducting resinl asking to protect is coated in ZL 2,009 1 0029622.6 respectively at the curve bonding plane of carbon bar curve bonding plane and stripe shape aluminium bracket, the two conjunction is tightly pressurizeed through high temperature 90 ~ 150 DEG C, within 5 ~ 8 hours, is cured and obtains pantograph carbon slide agent structure; Correcting process is carried out to pantograph carbon slide agent structure, all carries out surface sand-blasting process in the side of pantograph carbon slide agent structure;
(2) by high temperature resistant E-48 epoxy resin 40 ~ 60 parts, electrode coke carbon dust 15 ~ 20 parts, 5 ~ 10 parts, superfine graphite powder, successively put into and grind conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make conduction overlay glue, be applied to the pantograph carbon slide agent structure side through sand-blast finish, there is the carbon fiber mesh fabric of metal powder to be affixed on coated face interior tissue infiltration again, then turn over multiple roller back and forth in carbon fiber veneer with curved surface running roller, make high connductivity overlay glue fully permeate organization internal in carbon cloth;
(3), after aforesaid operations completes, composite carbon slide plate half-blank is put into hot setting case, through elementary 40 DEG C 30 minutes, middle rank 60 DEG C 1 ~ 2 hour, senior 80 ~ 150 DEG C of classification temperature raisings of 4 ~ 6 hours solidification, taking-up after cooling naturally;
(4) with epoxy resin 20 ~ 30 parts, metal or copper powder 20 ~ 30 parts, 10 ~ 15 parts, electrode graphite powder, the ratio that coke powder is 20 ~ 30 parts is successively put into stone roller conjunction machine and is carried out mixed stone roller conjunction, make conduction front cover glue, be applied to the semi-finished carbon fiber mesh fabric outside face of the composite carbon slide plate after taking-up, form the alloy carbon surface layer of 0.5 millimeters thick at carbon fiber surface; Then put into the solidification that the solidification case high temperature of 50 ~ 150 DEG C carries out 10 hours, cooling taking-up afterwards naturally, obtains described enhancing pantograph composite carbon slide plate finished product after polishing is carried out on surface.
5. the enhancing pantograph composite carbon slide plate according to claim 3 or 4, is characterized in that described metal powder is one or more in 200-320 object copper powder, tungsten powder or silver powder.
6. the enhancing pantograph composite carbon slide plate according to claim 3 or 4, it is characterized in that described interior tissue infiltration has the carbon fiber mesh fabric of metal powder to make by the following method: carbon fiber mesh fabric is cut into required length, put into wide groove, send forth on carbon fiber mesh fabric with the metal powder of carbon fiber mesh fabric quality 20 ~ 30wt%, then put into ultrasonic vibrator and carry out ultrasonic vibration, make metal powder penetrate into the interior tissue of carbon fiber mesh fabric, take out after all permeating.
7. electric locomotive according to claim 1 and EMU strengthen the preparation method of pantograph composite carbon slide plate, it is characterized in that comprising the following steps:
(1) by described pantograph carbon slide agent structure side surface sand-blast finish;
(2) by wide 45 ~ 50mm, the interior tissue infiltration of 1 ~ 4k has the carbon fiber mesh fabric of metal powder by conduction veneer sticker in pantograph carbon slide agent structure side, with running roller, on carbon fiber mesh fabric surface, roller is dynamic back and forth, bubble in carbon fiber mesh fabric is driven out of, makes high connductivity overlay glue fully permeate organization internal in carbon cloth; Wherein said conduction overlay glue by E-48 epoxy resin 40 ~ 60 weight portion, electrode coke carbon dust 15 ~ 20 weight portion, superfine graphite powder 5 ~ 10 weight portion, puts into and grinds conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make;
(3) classification temperature raising solidification is carried out to the composite carbon slide plate half-blank that previous step obtains;
(4) at the conduction front cover glue of the semi-finished carbon cloth outer surface of composite carbon slide plate, form the alloy carbon surface layer that one deck 0.5mm is thick, then the solidification carried out with the high temperature of 50 ~ 150 DEG C 10 hours is put into, naturally take out after cooling, after polishing is carried out on surface, obtain described enhancing pantograph composite carbon slide plate finished product; Wherein, described conduction front cover glue is by epoxy resin 20 ~ 30 weight portion, and metal powder 20 ~ 30 weight portion, electrode graphite powder 10 ~ 15 weight portion, coke powder 20 ~ 30 weight portion is put into and ground conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make.
8. preparation method according to claim 7, is characterized in that comprising the following steps:
(1) bonding plane of be shaped the carbon bar after roasting and aluminium bracket is worn into the curve according to drawing requirement, then the bonding plane of strip aluminium bracket section bar and carbon bar is made the curve coincide with carbon bar corresponding surface; Sand-blast finish is carried out to the curve bonding plane of stripe shape aluminium bracket, the conducting resinl asking to protect is coated in ZL 2,009 1 0029622.6 respectively at the curve bonding plane of carbon bar curve bonding plane and stripe shape aluminium bracket, the two conjunction is tightly pressurizeed through high temperature 90 ~ 150 DEG C, within 5 ~ 8 hours, is cured and obtains pantograph carbon slide agent structure; Correcting process is carried out to pantograph carbon slide agent structure, all carries out surface sand-blasting process in the side of pantograph carbon slide agent structure;
(2) by high temperature resistant E-48 epoxy resin 40 ~ 60 parts, electrode coke carbon dust 15 ~ 20 parts, 5 ~ 10 parts, superfine graphite powder, successively put into and grind conjunction machine and carry out the mixed conjunction 10 ~ 30min that grinds and make conduction overlay glue, be applied to the pantograph carbon slide agent structure side through sand-blast finish, there is the carbon fiber mesh fabric of metal powder to be affixed on coated face interior tissue infiltration again, then turn over multiple roller back and forth in carbon fiber veneer with curved surface running roller, make high connductivity overlay glue fully permeate organization internal in carbon cloth;
(3), after aforesaid operations completes, composite carbon slide plate half-blank is put into hot setting case, through elementary 40 DEG C 30 minutes, middle rank 60 DEG C 1 ~ 2 hour, senior 80 ~ 150 DEG C of classification temperature raisings of 4 ~ 6 hours solidification, taking-up after cooling naturally;
(4) with epoxy resin 20 ~ 30 parts, metal or copper powder 20 ~ 30 parts, 10 ~ 15 parts, electrode graphite powder, the ratio that coke powder is 20 ~ 30 parts is successively put into stone roller conjunction machine and is carried out mixed stone roller conjunction, make conduction front cover glue, be applied to the semi-finished carbon fiber mesh fabric outside face of the composite carbon slide plate after taking-up, form the alloy carbon surface layer of 0.5 millimeters thick at carbon fiber surface; Then put into the solidification that the solidification case high temperature of 50 ~ 150 DEG C carries out 10 hours, cooling taking-up afterwards naturally, obtains described enhancing pantograph composite carbon slide plate finished product after polishing is carried out on surface.
9. the preparation method according to claim 7 or 8, is characterized in that described metal powder is one or more in 200-320 object copper powder, tungsten powder or silver powder.
10. the preparation method according to claim 7 or 8, it is characterized in that described interior tissue infiltration has the carbon fiber mesh fabric of metal powder to make by the following method: carbon fiber mesh fabric is cut into required length, put into wide groove, send forth on carbon fiber mesh fabric with the metal powder of carbon fiber mesh fabric quality 20 ~ 30wt%, then put into ultrasonic vibrator and carry out ultrasonic vibration 0.8 ~ 2Kw, 30 ~ 80min, make metal powder penetrate into the interior tissue of carbon fiber mesh fabric, take out after all permeating.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108556633A (en) * | 2018-03-21 | 2018-09-21 | 大同新成新材料股份有限公司 | A kind of preparation method of railcar optical fiber early warning pantograph carbon slide |
| CN109836173A (en) * | 2017-11-24 | 2019-06-04 | 比亚迪股份有限公司 | A kind of metal-impregnated carbon slide and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106497478A (en) * | 2016-11-08 | 2017-03-15 | 宜兴市溢洋墨根材料有限公司 | A kind of speed motor train unit pantograph entirety slide plate high-temperature resistant conducting glue |
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| CN114001850A (en) * | 2021-10-25 | 2022-02-01 | 南京地铁建设有限责任公司 | Pantograph pressure detection method and system |
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